Parker Hannifin S.p.A S.B.C. Division
SLVDN User’s Manual
Page 31 of 181
5.3. Protections
The converter don’t have protection against overload and short circuit towards the mains.
The user must install the appropriate protection.
The fuses ta the drive power network must be sized as follows:
Models
Delayed fuses
to European standard
Fuses to Ul standard
(Listed, JDDZ)
SLVD1N, SLVD2N
6A
Classes CC, 6A
SLVD5N
10A
Classes CC, 8A
SLVD7N
14A
Classes CC, 10A
SLVD10N
16A
Classes CC, 15A
SLVD15N
20A
Classes CC, 20A
SLVD17N
25A
Classes CC, 25A
A thermo-magnetic switch properly chosen depending on the power cables used can be used
instead of fuses (not use in installations with UL standard).
Use a 3,15A fast fuse for the 24V power supply protection.
5.4. PE (Protective Earth) connections
It is necessary to minimize the length of the individual cables to be grounded. For this reason
we recommend that a grounding bar be placed as close as possible to the frequency
converters.
The grounding bar must be a copper bar and must be installed in contact with the cabinet
metal frame. The table shows the minimum dimensions depending on length.
Lenght
(m)
Width
(mm)
Thickness
(mm)
0.5 20 6
1 40 6
1.5 50 6
To connect the converter to the grounding bar use either one cable with a minimum section of
10mm
2
, or two cables with the same section as power cables.
Use copper grounding cables.
BARRA
PE
BARRA
PE
PE
SLVD1…7N
SLVD10-15-17N